Optical Tube Assemblies
Optical tube assemblies, commonly abbreviated by astronomers as OTAs are simply the tube of the telescope where the optics are internally located. OTAs can be helpful in a situation in which an observer has a compatible mount and doesn't want to buy a whole new telescope with a mount included. Optical Tube Assemblies can come in the form of Maksutov-Cassegrain, Astrographs, Reflectors, Refractors, Schmidt-Cassegrains and many others! With the right mounting connections and range of mount and tripod payload, OTAs are a great choice for changing optical type without changing the mount.
The built in Dual Speed Focuser enables coarse and fine focus adjustments. Sky at Night Magazine states: "With its excellent build quality and rich feature set, we thoroughly recommend this system if you’re looking to upgrade from your current setup".... Learn MoreFREE SHIPPINGModel#: 5867(48 States)
Designed wtih the discerning astrophotographer in mind, Sky-Watcher USA’s top-of-the-line Esprit refractors deliver the kind of imaging performance one would expect from telescopes costing thousands of dollars more.... Learn MoreFREE SHIPPINGModel#: S11420(48 States)
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With all these innovations and technological features built in, what's not to like about the Meade LX-200 ACF 12 inch Computerized Telescope - except maybe for the fact that you don't yet own one!... Learn MoreFREE SHIPPINGModel#: 1210-60-00(48 States)